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CVE-2018-20020

Status Candidate

Overview

LibVNC before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contains heap out-of-bound write vulnerability inside structure in VNC client code that can result remote code execution

Related Files

Ubuntu Security Notice USN-4587-1
Posted Oct 21, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4587-1 - Nicolas Ruff discovered that iTALC had buffer overflows, divide-by-zero errors and didn't check malloc return values. A remote attacker could use these issues to cause a denial of service or possibly execute arbitrary code. Josef Gajdusek discovered that iTALC had heap-based buffer overflow vulnerabilities. A remote attacker could used these issues to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, remote, denial of service, overflow, arbitrary, vulnerability
systems | linux, ubuntu
advisories | CVE-2014-6051, CVE-2014-6055, CVE-2018-20019, CVE-2018-20020, CVE-2018-20023, CVE-2018-20024, CVE-2018-20748, CVE-2018-20750, CVE-2019-15681
MD5 | a0940d2ea11a0ed386f0828fbb1f40c5
Ubuntu Security Notice USN-4547-2
Posted Sep 29, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4547-2 - It was discovered that the LibVNCClient vendored in SSVNC incorrectly handled certain packet lengths. A remote attacker could possibly use this issue to obtain sensitive information, cause a denial of service, or execute arbitrary code.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2018-20020
MD5 | 10e3d0622f2e336e51652caf06b7cf9d
Gentoo Linux Security Advisory 202006-06
Posted Jun 12, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202006-6 - Multiple vulnerabilities have been found in ssvnc, the worst of which could result in the arbitrary execution of code. Versions less than or equal to 1.0.29-r2 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2018-20020, CVE-2018-20021, CVE-2018-20022, CVE-2018-20024
MD5 | ccf3d343ee86dccfd49618460f64a593
Gentoo Linux Security Advisory 201908-05
Posted Aug 9, 2019
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201908-5 - Multiple vulnerabilities have been found in LibVNCServer, the worst of which could result in the arbitrary execution of code. Versions less than 0.9.12 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2018-20019, CVE-2018-20020, CVE-2018-20021, CVE-2018-20022, CVE-2018-20023, CVE-2018-20024, CVE-2018-7225, CVE-2018-7226
MD5 | 34625c253ad49372c4d4dd4b9a0493fe
Debian Security Advisory 4383-1
Posted Feb 5, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4383-1 - Pavel Cheremushkin discovered several vulnerabilities in libvncserver, a library to implement VNC server/client functionalities, which might result in the execution of arbitrary code, denial of service or information disclosure.

tags | advisory, denial of service, arbitrary, vulnerability, info disclosure
systems | linux, debian
advisories | CVE-2018-15126, CVE-2018-15127, CVE-2018-20019, CVE-2018-20020, CVE-2018-20021, CVE-2018-20022, CVE-2018-20023, CVE-2018-20024, CVE-2018-6307
MD5 | 9d556a5a042cb152144c37fd812f564d
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